2004 3.8 Impala HVAC System Failure

5

Asked by Nov 13, 2015 at 12:46 AM about the 2004 Chevrolet Impala LS

Question type: Maintenance & Repair

I have a 2004 Chevy Impala 3.8 (VIN-K) that is only blowing out cold air on
both passenger and driver side.

When the Temperature control is turned to hot, there is no noise of the
motors switching, thus the car remains stuck in AC/Cool.

Fan Speed Control - Works
Mode Selection(Defrost, upper, lower, etc) - Work

With the research I've done I've come to these points of failure, with
questions...

Blend Door Actuator - Makes sense, but if so, how many do I need to buy?
I can't seem to nail down the correct number (assumption is 2),
additionally, is there a difference between the "drivers side" and
"passenger side" actuator parts?

Air Flap Actuator - AC Delco 15-74122
Can't find any info on this guy, what it really does, or where it's located.  
Could it be my problem, and if so....where is it in the assembly?

HVAC Control Panel -
It should be noted that the lights in my current control panel do not work in
the temperature control area. This is what draws me to this conclusion of
this part possibly being bad.

Any advice would be appreciated.  I would prefer not to spend more money
than I have to, and buy parts that I don't need on this issue; or have to
mess around with a goose chase of taking my dash a part a couple times
to replace different parts.

2 Answers

51,645

I do believe you are on the wright track. The parts store can tell you how many actuators are in the car, and I believe the AC Delco part would be the same. The temp. control unit is easy to take out, check for a bunt bulb.

51,645

Also the parts store would have a picture of the item in question, some times I know what the problem is and just having the part in hand helps locate the one I want to replace. These parts would be under the dash.

Your Answer

Add photo

Related Questions

Search Chevrolet Impala Questions

Chevrolet Impala Experts

#1 Js08016
Js08016
Reputation 1,670
#2 Danny Wang
Danny Wang
Reputation 1,640
#3 Tom Demyan
Tom Demyan
Reputation 1,450
View All

Related Models For Sale

Used Chevrolet Malibu
1,008 Great Deals out of 85,694 listings starting at $1,995
Used Honda Accord
812 Great Deals out of 81,611 listings starting at $899
Used Chrysler 300
404 Great Deals out of 22,159 listings starting at $1,000
Used Nissan Maxima
347 Great Deals out of 25,224 listings starting at $1,400
Used Nissan Altima
1,079 Great Deals out of 82,567 listings starting at $670
Used Chevrolet Tahoe
776 Great Deals out of 28,447 listings starting at $1,500
Used Buick LaCrosse
307 Great Deals out of 22,577 listings starting at $1,100
Used Ford Mustang
361 Great Deals out of 44,495 listings starting at $1,000
Used Chevrolet Silverado 1500
2,286 Great Deals out of 155,167 listings starting at $1,395
Used Toyota Camry
1,096 Great Deals out of 96,274 listings starting at $1,250
Used Ford Taurus
253 Great Deals out of 20,518 listings starting at $1,500

Used Cars For Sale

2017 Chevrolet Impala LS For Sale
1,174 listings starting at $19,750
2016 Chevrolet Impala LS For Sale
19 Great Deals out of 1,073 listings starting at $14,566
2015 Chevrolet Impala LS For Sale
9 Great Deals out of 417 listings starting at $11,795
2014 Chevrolet Impala LS For Sale
14 Great Deals out of 398 listings starting at $10,991
2013 Chevrolet Impala LS For Sale
3 Great Deals out of 47 listings starting at $5,900